Alert archive / Texas / Mesoscale Discussions in 2015

Mesoscale Discussion 1950

November 16, 20154 states

The Storm Prediction Center issued this mesoscale discussion at Nov 16, 2015, 2:51 PM MST for 4 states. It was in force for 114 min.

The area

The outline as issued.

The facts

Issued
Nov 16, 2015, 2:51 PM MST (21:51 UTC)
Expired
Nov 16, 2015, 4:45 PM MST
In force
114 min
Issued by
the Storm Prediction Center
All 57 counties

Baca County, CO, Prowers County, CO, Clark County, KS, Finney County, KS, Ford County, KS, Grant County, KS, Gray County, KS, Hamilton County, KS, Haskell County, KS, Hodgeman County, KS, Kearny County, KS, Lane County, KS, Meade County, KS, Morton County, KS, Ness County, KS, Scott County, KS, Seward County, KS, Stanton County, KS, Stevens County, KS, Beaver County, OK, Cimarron County, OK, Texas County, OK, Armstrong County, TX, Bailey County, TX, Briscoe County, TX, Carson County, TX, Castro County, TX, Cochran County, TX, Collingsworth County, TX, Crosby County, TX, Dallam County, TX, Deaf Smith County, TX, Dickens County, TX, Donley County, TX, Floyd County, TX, Gray County, TX, Hale County, TX, Hall County, TX, Hansford County, TX, Hartley County, TX, Hemphill County, TX, Hockley County, TX, Hutchinson County, TX, Lamb County, TX, Lipscomb County, TX, Lubbock County, TX, Moore County, TX, Motley County, TX, Ochiltree County, TX, Oldham County, TX, Parmer County, TX, Potter County, TX, Randall County, TX, Roberts County, TX, Sherman County, TX, Swisher County, TX, Wheeler County, TX

The radar

The Amarillo radar (KAMA), 115 km from the middle of the area, began a volume at 21:53 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The nearest sounding before it

Amarillo Airport, TX (KAMA), launched 12:00Z, 9.9 hours before the alert went out and 116 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, Amarillo Airport, TX at 12:00Z on 2015-11-16Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Amarillo Airport, TX at 12:00Z on 2015-11-16The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 88 square meters per square second.1939587897Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
867 m above ground
0-6 km bulk shear
33 kt
0-1 km storm-relative helicity
88 m²/s²
0-3 km storm-relative helicity
158 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

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SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Nov 16, 12:00 PM MSTTornado WatchSPCBaca, Prowers8 hr
Nov 16, 11:44 AM MSTMesoscale DiscussionSPCFinney, Ford, Grant, Gray, Hamilton, Haskell and 9 more3 hr
Nov 16, 12:58 PM MSTMesoscale DiscussionSPCCheyenne, Decatur, Gove, Graham, Greeley, Logan and 8 more3 hr
Nov 16, 2:34 PM MSTTornado WatchSPCCheyenne, Decatur, Gove, Graham, Greeley, Logan and 9 more6 hr
Nov 16, 4:20 PM MSTMesoscale DiscussionSPCCheyenne, Decatur, Gove, Graham, Greeley, Logan and 8 more115 min
Nov 16, 4:56 PM MSTMesoscale DiscussionSPCClark, Comanche, Meade, Seward94 min
Nov 16, 1:31 PM MSTMesoscale DiscussionSPCAustin, Bastrop, Bell, Brazos, Burleson, Caldwell and 24 more59 min
Nov 16, 4:50 PM MSTMesoscale DiscussionSPCAndrews, Borden, Crane, Dawson, Ector, Gaines and 10 more55 min

Nearby

Mesoscale Discussions in Texas, 2015Mesoscale Discussions in Kansas, 2015Mesoscale Discussions in Oklahoma, 2015Every mesoscale discussion in 2015

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.